Update Source/platform/ to assume Oilpan only.

third_party/WebKit/Source/platform/graphics/filters/FEColorMatrix.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 20 matching lines @@
 enum ColorMatrixType {
     FECOLORMATRIX_TYPE_UNKNOWN          = 0,
     FECOLORMATRIX_TYPE_MATRIX           = 1,
     FECOLORMATRIX_TYPE_SATURATE         = 2,
     FECOLORMATRIX_TYPE_HUEROTATE        = 3,
     FECOLORMATRIX_TYPE_LUMINANCETOALPHA = 4
 };
 
 class PLATFORM_EXPORT FEColorMatrix final : public FilterEffect {
 public:
-    static RawPtr<FEColorMatrix> create(Filter*, ColorMatrixType, const Vector<float>&);
+    static FEColorMatrix* create(Filter*, ColorMatrixType, const Vector<float>&);
 
     ColorMatrixType type() const;
     bool setType(ColorMatrixType);
 
     const Vector<float>& values() const;
     bool setValues(const Vector<float>&);
 
     TextStream& externalRepresentation(TextStream&, int indention) const override;
 
     static inline void calculateSaturateComponents(float* components, float value);
     static inline void calculateHueRotateComponents(float* components, float value);
 
 private:
     FEColorMatrix(Filter*, ColorMatrixType, const Vector<float>&);
 
     PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder&) override;
 
     bool affectsTransparentPixels() override;
 
     ColorMatrixType m_type;
 
     // The m_values vector may not contain the right number of values. Always check
     // before accessing contents.
     Vector<float> m_values;
 };
 
 } // namespace blink
 
 #endif // FEColorMatrix_h